封(ふう)筒(とう) fuutouの no裏(うら) uraに ni彼(かれ)の() kareno住(じゅう)所(しょ) juushoを o書(か)い()て() kaiteしまった shimatta。 I accidentally wrote his address on the back of the envelope. Literal Envelope [possessive-の] back [target-に] his address [object-を] wrote [regret-てしまった]. 封筒の裏に means 'on the back of the envelope.' ~てしまった expresses regret: 'I went and wrote it on the wrong side.' A relatable everyday mistake. daily lifestationery~てしまう (regret/completion)
封(ふう)筒(とう) fuutouの no裏(うら) uraに ni彼(かれ)の() kareno住(じゅう)所(しょ) juushoを o書(か)い()て() kaiteしまった shimatta。 I accidentally wrote his address on the back of the envelope. Literal Envelope [possessive-の] back [target-に] his address [object-を] wrote [regret-てしまった]. 封筒の裏に means 'on the back of the envelope.' ~てしまった expresses regret: 'I went and wrote it on the wrong side.' A relatable everyday mistake. daily lifestationery~てしまう (regret/completion)